Guinea Pig Shirt - Old Man Who Loves Guinea Pig Shirt Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat Guinea Pig Shirt, Guinea Pig Apparel, Guinea Pig Tee Shirt shirt for guinea pig, guinea pig shirt kids, guinea pig shirts women, guinea pig shirts men, guinea pig shirts, guinea pig t shirts, guinea pig, Old Man Who Loves Guinea Pig Shirt Lightweight, Classic fit, Double-needle sleeve and bottom hem